The
RGB workspace profiles such as "Adobe RGB 98" proposed by
Photoshop, Illustrator etc. have a D65 white point, increasing risks
of error depending on the rendering intent you use in your I.C.C.
production workflow, taking into account the recommendations of ANSI
and ISO are for a D50 lighting throughout the graphic chain.
The
Adobe WideGamut profile has a D50 white point but if it is adapted to
photographic applications, it has an unnecessarily broad chromatic
range for Graphic arts for traditional CMYK printed work.
The
European Colour Initiative committee (ECI) thus recommends a
workspace better adapted to the requirements and output norms, and
publishes a free RGB profile workspace named ECI RGB.
Below
the 2D comparison of ECI RGB and cromalin Eurosprint
color gamut, in the CIE xyY absolute space of colors, and in CIE Lab
space:
